Tolpyralate, 100 µg/ml, Acetonitrile, 1ml

2-Butyl-3,5-dimethylpyrazine and 2-butyl-3,5-dimethylpyrazine, Isomer mixture, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no.

2,3,5,6-Tetrachloroterephthalic acid

Chloroform-13C,2000 µg/mL,MeOH,1mL,